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Personal Loan Prepayment Penalties: How to Spot One and What Paying Early Saves

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Paying off a personal loan early usually cuts the interest you pay. A prepayment penalty is the lender's way of taking some of that back. Several personal lenders say on their own sites that they do not charge one, but that is not true of every loan, and the fee is easy to miss until you try to pay off early.

This guide shows where the answer sits in your loan paperwork, how the older Rule of 78s method shrinks your savings, which borrowers are protected by law, and how much an early payoff saves on a real schedule.

Key takeaways

  • A prepayment penalty is a fee for paying off all or part of a loan early. Your Truth in Lending disclosure must say whether one may be charged.
  • Federal law requires a refund method at least as favorable as the actuarial method on precomputed consumer loans longer than 61 months, which rules out the Rule of 78s on those loans.
  • Active-duty servicemembers and their dependents covered by the Military Lending Act cannot be charged a prepayment penalty.
  • On a $10,000, 60-month loan at 12%, paying it off right after the 30th payment cuts total interest by $932.26 in this example.

This guide is part of our personal loans hub.

What is a prepayment penalty?

A prepayment penalty is a fee a lender charges if you pay off all or part of a loan early. Writing about auto loans, the CFPB says these penalties are "generally used to discourage you from paying off your loan early as it reduces the amount of interest a lender collects."

The fee can take different forms. OneMain Financial's guide, checked October 19, 2026, says it "can be a percentage of a loan balance; a fixed fee; or the lender's lost interest."

The official interpretation of Regulation Z, the federal Truth in Lending rule, lists charges that count as prepayment penalties even when they are not labeled that way:

Fees that are charged whether or not you pay early, such as a fee for a payoff statement, are not prepayment penalties under that guidance.

Where does your loan disclosure tell you?

The Truth in Lending disclosure for a closed-end loan, such as an installment loan, must include a prepayment statement under Regulation Z, 12 CFR 1026.18(k). What it must say depends on how the loan charges interest:

How the loan charges interestWhat the disclosure must state
Interest computed on the unpaid balance (simple interest)"whether or not a charge may be imposed for paying all or part of a loan's principal balance before the date on which the principal is due"
Precomputed or add-on finance charge"whether or not the consumer is entitled to a rebate of any finance charge if the obligation is prepaid in full or in part"

So check two things. On a simple-interest loan, look for a statement that no charge may be imposed. On a precomputed loan, look for whether you are entitled to a rebate of unearned finance charge, and then ask how that rebate is calculated.

The CFPB's advice for auto loans applies here too: ask before you sign, review the disclosure and contract, and if there is a prepayment penalty clause, negotiate to remove it or ask for a different loan.

What is the Rule of 78s, and when is it banned?

The Rule of 78s is a way of calculating how much prepaid interest you get back on a precomputed loan. The Wisconsin Department of Financial Institutions explains the name: on a 12-month loan, "the sum of the digits, 12 through 1 inclusive" is 78. The lender treats 12/78 of the finance charge as earned in month one, 11/78 in month two, and so on, so interest is front-loaded.

The result is a smaller refund than you might expect. Wisconsin's regulator says the lender will have earned "approximately 43%" of the finance charge a quarter of the way through the term and "approximately 74%" halfway through. It also warns that paying off in 15 months instead of 30 "will not produce a savings of one-half of the interest."

Federal law limits this. Under 15 U.S.C. 1615:

For precomputed loans of 61 months or less, this federal rule does not set the refund method, so read the contract and check your state's law.

Are servicemembers protected?

Yes, if they are covered by the Military Lending Act. Under 10 U.S.C. 987 and 32 CFR 232.8(h), a creditor cannot extend credit to a covered borrower when the borrower "is prohibited from prepaying the consumer credit or is charged a penalty fee for prepaying all or part of the consumer credit." The CFPB summarizes it: "Under the MLA, lenders cannot charge you prepayment penalties."

Covered borrowers include servicemembers on active duty under orders that do not specify 30 days or fewer, and their dependents, as defined in 32 CFR part 232.

How do you check a specific lender?

Start with the lender's own published terms. Here is what three lenders say, checked October 19, 2026:

LenderWhat its own page says about early payoff
Navy Federal Credit UnionPersonal loans have "no prepayment penalties if the loan is paid off early," and "no application or originations fees"
SoFiIts personal loan page says "no origination fees required, no prepayment penalty fees and no late fees whatsoever." The same page says the APR reflects an origination fee of 0% to 7%, deducted from loan proceeds, and refers to a "no origination fee option."
Upgrade"No, there are no prepayment fees for paying off your loan early."

Then confirm it on your own documents:

  1. Read the prepayment line on the Truth in Lending disclosure before you sign.
  2. Search the loan agreement for "prepay," "rebate," "Rule of 78," and "minimum finance charge."
  3. Ask the lender for a payoff quote before you send a large payment.

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How much interest does early payoff save?

On a simple-interest loan with no penalty, interest is charged only on the balance you still owe. Paying it off stops future interest.

Inputs: $10,000 borrowed, 12% APR (1% per month), 60 monthly payments, no fees, standard amortization. Monthly payment: $222.44.

Pay off right after paymentBalance to pay offTotal interest paidInterest saved vs. full term
30$5,740.94$2,414.14$932.26
36$4,725.67$2,733.51$612.89
48$2,503.90$3,181.02$165.38
60 (full term)$0.00$3,346.40$0.00

The savings shrink fast because early payments are mostly interest. Two notes on the math: balances assume you pay off on a due date, and the full-term interest uses 60 equal payments. A lender that adjusts the last payment to clear the final few cents of balance will show slightly different totals (under $1 in this example). Try your own numbers in the personal loan payment calculator, or compare payoff orders across several debts with the snowball and avalanche calculator.

Representative example. For a $5,000 loan at a 10% APR over 36 months, the monthly repayment would be $161.34. Over the term, the total repayment would amount to $5,808.24, with $808.24 in interest. The loan terms range from 6 months to 12 years, with APRs between 5.99% and 35.99%. The exact rate you receive depends on factors like your creditworthiness, loan size, and repayment schedule. Better rates are typically offered to those with excellent credit.

Do you get the origination fee back if you pay early?

Usually not. SoFi's guide to origination fees, checked October 19, 2026, says: "Generally, origination fees are not refundable if you pay off a loan early, according to Experian. However, you may be able to get a partial refund from some lenders."

Prosper's help center explains why the fee is already spent: it is "automatically deducted from your loan proceeds before your money is transferred to you." The fee is a fixed cost: the earlier you pay off, the larger it is compared with the interest you paid. The origination fee calculator shows how a fee changes what you receive and your APR.

One exception to watch: if a lender waived the fee at closing but charges it back when you prepay, Regulation Z's official interpretation treats that charge as a prepayment penalty.

Common questions

Do personal loans have prepayment penalties?

Navy Federal, SoFi, Upgrade and Prosper each say on their own pages that they do not charge one. Others may, so always read the prepayment line on your disclosure.

Does paying extra each month reduce my interest?

On a simple-interest loan, yes, because interest is charged on a smaller balance. On a precomputed loan, Wisconsin's regulator says "making payments before they are due does not reduce the total interest owed." Only a full early payoff saves interest there.

Can a lender refuse to let me pay off early?

For covered servicemembers, no: the MLA bans terms that prohibit prepaying. For other borrowers, check the contract. In its auto loan guidance, the CFPB says the contract and state law decide, and that some states prohibit prepayment penalties for certain loans. Federal credit union members have a federal rule on their side: NCUA's lending rule says a member "may repay a loan, or outstanding balance on a line of credit, prior to maturity in whole or in part on any business day without penalty."

Federal law bars it for refunds on precomputed consumer loans longer than 61 months made after September 30, 1993. For shorter loans, the contract and state law control.

Related: $10,000 personal loan options · How to rate shop for a personal loan · Next step: Personal loans hub

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